143821648 has 40 divisors (see below), whose sum is σ = 293124096. Its totient is φ = 68265600.

The previous prime is 143821637. The next prime is 143821651. The reversal of 143821648 is 846128341.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23553 + ... + 29023.

Almost surely, 2^143821648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143821648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146562048).

143821648 is an abundant number, since it is smaller than the sum of its proper divisors (149302448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143821648 is a wasteful number, since it uses less digits than its factorization.

143821648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5563 (or 5557 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 143821648 is about 11992.5663642108. The cubic root of 143821648 is about 523.9317938534.

Adding to 143821648 its reverse (846128341), we get a palindrome (989949989).

The spelling of 143821648 in words is "one hundred forty-three million, eight hundred twenty-one thousand, six hundred forty-eight".